The chapel is a privately owned and maintained non-denominational Grade 2 listed building.

Reports suggest that the original Holy Well and Chapel were built in Celtic times, possibly around the 5th century by a Welsh saint going by the name of either St. Cleder or St. Clederus who is said to have been one of the twenty-four children of Brechen of Wales. Many of the surrounding parishes around St. Clether are seemingly named after many of the other Brechen children, suggesting that many of them travelled and set up home in that area of the county.

The chapel and well slowly fell into disrepair over the many centuries it's been standing. In the 15th century the building was rebuilt and restored to its former glory, but that evidentally transpired to be a temporary restoration and again, over the years, it eventually became nothing more than a pile of stonework that was covered by weeds and brambles.

However, in 1895-1900 the Reverend Sabine Baring-Gould completely rebuilt the chapel and holy well and fully restored it to its former glory. This is how the chapel stands today.